Watch head



FIG. 1 is a top plan view of a watch head showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being mirror image; and,

FIG. 4 is a first end elevational view thereof, the second end being mirror image.

The broken-line showings are environmental only and form no part of the claimed design. 

The ornamental design for a watch head, as shown and described. 